"Thou hast asked Me concerning the nature of the soul..."

"Thou hast asked Me concerning the nature of the soul. Know, verily, that the soul is a sign of God, a heavenly gem whose reality the most learned of men hath failed to grasp, and whose mystery no mind, however acute, can ever hope to unravel. It is the first among all created things to declare the excellence of its Creator, the first to recognize His glory, to cleave to His truth, and to bow down in adoration before Him. If it be faithful to God, it will reflect His light, and will, eventually, return unto Him. If it fail, however, in its allegiance to its Creator, it will become a victim to self and passion, and will, in the end, sink in their depths.

Whoso hath, in this Day, refused to allow the doubts and fancies of men to turn him away from Him Who is the Eternal Truth, and hath not suffered the tumult provoked by the ecclesiastical and secular authorities to deter him from recognizing His Message, such a man will be regarded by God, the Lord of all men, as one of His mighty signs, and will be numbered among them whose names have been inscribed by the Pen of the Most High in His Book. Blessed is he that hath recognized the true stature of such a soul, that hath acknowledged its station, and discovered its virtues."

-Bahá'u'lláh, Gleanings From the Writings of Bahá’u’lláh, pp. 158-159